• product description battery backup : 5-6 Hours Model Number: F11-2 Mini Microphone95-100% Noise cancellation Communication: Wireless- 3.5mm/ iPhone / Type C All Mobile Phone & Camera Use: COMPUTER MICROPHONE, Conference Microphone, Karaoke Microphone, Other, Church, Stage Performance,• INTERVIEW, Speech, Smart Phones, Recording, SINGING, Teaching, Portable Audio Player, communication, broadcasting, Kids, Gaming Material: Metal, ABS Function: Noise Cancelling, PORTABLE, Condenser Microphone, With Sound Card Polar Pattern: Omni-directional, Cardioid, Figure Hyper cardioid Type: Dynamic Microphone, Electret Condenser Microphone• Signal To Noise Ratio: 85DBFrequency Response